{"id": 4165, "prediction_verbatim": "NVDA outperforms SPY over next 48 hours following 8-K narrative window", "created_at": "2026-04-29 17:39:17", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-01 17:40:00", "chain_hash": "4c2eb94de43a6c9b8b237df4cc836b4237383958e68a1696ae9baa213a2eb355", "chain_tx": "4srWPLYfUrSfsev5ckP3pnNUPwajPtripFGfYL8xiynr1GLD1uCA31HNvmqsndAZS9BqQRdJhCm8h9Gr7RLG6GUy", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}